Here are some images of fossils found in material from Red Hill Pennsylvania. This Devonian (Famennian stage) matrix contains fish parts among other things. It might be part of the Catskill Formation.
Thanks to Dave for the material. See his blog for more info: viewsofthemahantango.blogspot.com/2012/04/hyneria-scale-from-red-hill.html
viewsofthemahantango.blogspot.com/2012/04/osteolepid-fish-scale-from-red-hill.html